公开(公告)号：US11814995B2

公开(公告)日：2023-11-14

申请号：US17663562

申请日：2022-05-16

Applicant: Cummins Inc.

Inventor： Kunlun Liu ,  Xiaobo Song ,  Xing Jin ,  Kristopher R. Bare ,  Sriram S. Popuri ,  Scott Robert Bardakjy ,  Agneya Turlapati

IPC: F01N3/20 ,  B01D53/94 ,  F02D41/06 ,  F01N9/00

CPC classification number: F01N3/2006 ,  B01D53/9418 ,  F01N3/2066 ,  F02D41/064 ,  F01N3/206 ,  F01N9/00 ,  F01N2240/16 ,  F01N2260/06 ,  F01N2270/04 ,  F01N2270/08 ,  F01N2270/10 ,  F01N2610/1433

Abstract: A recycling loop configuration of an exhaust gas aftertreatment system decreases a level of system-out NOx emissions of an engine. An apparatus including the configuration has an exhaust gas recycling system having a closed gas recycling loop system configured to heat gas circulating within the loop, and a blower for circulating gas within the loop. A method for operating the engine includes preheating at least one aftertreatment component of an exhaust gas aftertreatment system of the engine by exposing the component to heated gas circulating in a closed gas recycling loop.

公开(公告)号：US20220290594A1

公开(公告)日：2022-09-15

申请号：US17663562

申请日：2022-05-16

Applicant: Cummins Inc.

Inventor： Kunlun Liu ,  Xiaobo Song ,  Xing Jin ,  Kristopher R. Bare ,  Sriram S. Popuri ,  Scott Robert Bardakjy ,  Agneya Turlapati

IPC: F01N3/20 ,  F02D41/06 ,  B01D53/94

Abstract: A recycling loop configuration of an exhaust gas aftertreatment system decreases a level of system-out NOx emissions of an engine. An apparatus including the configuration has an exhaust gas recycling system having a closed gas recycling loop system configured to heat gas circulating within the loop, and a blower for circulating gas within the loop. A method for operating the engine includes preheating at least one aftertreatment component of an exhaust gas aftertreatment system of the engine by exposing the component to heated gas circulating in a closed gas recycling loop.